Wheel



June; 30. 1931. E. E. WALKER WHEEL Original Filed Nov. '26, 1935 1 BY m M 2 ATTORNEYS.

T There are several reasons for this.

Patent ed June 30, 1931 UNITED STATES JPATEINT oFFicE v EDWARD E. WALKER,- or PENNSYLVANIA, ASSIGNOR .TO ERIE MALLEABLE iaou "A CORPORATION OF PENNSYLVANIA COMPANY, OF .I'ENNSYLVANIA,

' WHEEL;

Application. filed November 26, 1926, semi Ira-150,781. Renewed June 18,1929.

In the forming of metal wheels, certain metal such as malleable iron isvery much more desirable in forming the hub than a' relatively hard metal, such 'as cast steel.

7 Malleable iron lends "itself morere'adily to thinwalled nicely formed castings and also oan 7 be more readily worked and'machinedafter its formation. Thus it is practical to make a lighter wheel of such material'and more v cheaply. than when formed of cast steel.

Thedifliculty in using malleable metal for hubs of driving. wheels is that the walls of 7 an ordinary key-way with which said hubs v are provided are not su'fliciently strong, or

dense, to sustain the driving strains and shocks to which these walls are subjected. In consequence, it has been common to 'form wheels using malleable castings for the frame, or wheel structure outside of the hub and cast steel for the hub. V

The present invention is directed to .a

means by. which hubs of relatively soft metal, such as malleable iron, may besuc-. 5 cessfully used and it consists broadly in supplying such hub with a metalinsert of relatively hard metal, such as steel and prefer ably steel that keyway. r r

It is desirable that the insert be such that it may be secured in the hub without distorting the'same, be so formed that. it will be rigidly securedin the hub and in such man- {ner that the driving'strains may be readily communicated through the .malleable iron without injury.- The present invention accomplishes this purpose in a simple and ef- :tective manner.

invention will appear .from the specification and claims. I y

The invention, is illustrated in the accompanying drawings as follows Fig. 1 shows aside elevation of a wheel, partly in section, on the line 11 in Fig. 2. Fig. 2 a sectionon the line 2'2 inFig. 1. Fig. 3 an enlarged View ofthe hub, partly in section on the line 3+3 .iniFig. 4.

may be hardened for the Features and details of the myhand;

' The spokes the exemplification shown are I r provided with the felloe at. A demountable rim 5is arranged 'on the felloe and a tire 6 is, carried by this rim.

the hub, this opening being preferably slightly tapered. The bushing has a key projectionlO which forms a nice lit with a i key-way 11 formed in the hub so that when against turningand-heldrigidly and secured in the hub. 7 l

much closer and. secure fit between the bushthe bushing is forced to place it is locked.

Inthis waynot only is itpossible to get a i i of the hub will readily sustain the thrust I and strain from the axle. t 'The'bushingis provided with a key-way l2 correspondingto the key-way 8 and'the usual key 13 is arranged in these key-ways locking the hub as a Whole-withthe axle.-

,What I claim as new is-:' 7

1. In a-wheel, the combination of a metal wheellhub formed of relatively soft-metal having an axle openingtherein; and a'relatively hard .Inetal bushingfsecured in the wheelhub formed of relatively soft-metal.

having an aXle' opening therein, and a relatively hard metal bushing in the opening,

said bushing having keyshoulders on its innerperiphery and a key lock between it and the hub. 1

,ED ARD WALKER." T

Fig. as section on the line. m Fig.3.

1 marks the hub, 2 thehub flange, and 3 50 the spokes extending from thehubfflange opening, said-bushing having key shoulders In'testimonyiwhereof I have hereuntoset 

